> For the complete documentation index, see [llms.txt](https://docs.mixeffect.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mixeffect.app/automate/osc/messages/upstream-keyers/style.md).

# Style

| Message                | Description                                                           | Arguments |
| ---------------------- | --------------------------------------------------------------------- | --------- |
| `/mixeffect/usk/style` | Sets the style of the upstream keyer for the selected Mix Effect Bus. | Multiple  |

| Argument | Type    | Description                                             |
| -------- | ------- | ------------------------------------------------------- |
| Style    | Integer | <p>0 = Luma<br>1 = Chroma<br>2 = Pattern<br>3 = DVE</p> |
| USK      | Integer | One-based index of the Upstream Keyer. Default is 1.    |
| M/E      | Integer | One-based index of the Mix Effect Bus. Default is 1.    |